As the American frontier "closed", many in American pushed for new frontiers of an empire for exploration,settlement,
and new markets. Theodore Roosevelt resigned from his position as assistant secretary of the navy to organize the Rough Riders.
Josiah Strong fostered the concept of the righteousness of American expansion. The Treaty of Washington in 1871, showed the
diplomatic skills of Hamilton Fish and provided for the negotiation of American Civil War claims against Great Britain. During
the Cleveland administration, which nation did the United States replace as the major power in Latin American Great Britain.
The United States increase its interest in Haawaii after the Civil War, The economic and military value of the islands